es‧tab‧lish‧ment S3 W2
1 [countable] formalBB
an organization or institution, especially a business, shop etc:
a top class training establishment
the group of people in a society or profession who have a lot of power and influence and are often opposed to any kind of change or new ideas:
Young people are supposed to rebel against the Establishment.
the medical/legal/military etc establishment
The public is treated with contempt by the art establishment.
the act of starting an organization, relationship, or system
the establishment of NATO in 1949